Inside Marc Andreessen & Ben Horowitz’s Multi-Family Office
27 March 2026

Inside Marc Andreessen & Ben Horowitz’s Multi-Family Office

Sourcery

About

Michel Del Buono, CIO of Andreessen Horowitz’s multi-family office Perennial, breaks down how Silicon Valley’s top founders and investors manage wealth after massive liquidity events.

Perennial was built after Marc Andreessen and Ben Horowitz saw a major gap: traditional wealth managers weren’t delivering institutional-quality investment advice, while institutional asset managers weren’t built for taxable individuals. 

In this episode, we go deep on how portfolios should be constructed when you’re managing $50M to $1B+, including how to prepare for potential mega-events like a SpaceX IPO — which could be one of the largest in history. 

We cover:

    Why most wealth management portfolios are misaligned

    The structural flaws of RIAs vs institutional asset managers

    How to manage concentrated stock positions pre- and post-IPO

    Why venture capital returns are driven by extreme dispersion

    How taxes, fees, and structure can drive hundreds of basis points of alpha

    Why volatility is one of the biggest opportunities for long-term investors

    The rise of multi-family offices in Silicon Valley

Michel also explains why many founders make critical mistakes immediately after their first liquidity event — and how to avoid them.

If you’re building, investing, or approaching a major liquidity event, this is a masterclass in how wealth is actually managed at scale.


Michel Del Buono: https://www.linkedin.com/in/mdelbuono/ 

Molly O’Shea: https://x.com/MollySOShea 

Sourcery: ⁠https://x.com/sourceryy 


𝐄𝐏𝐈𝐒𝐎𝐃𝐄 𝐋𝐈𝐍𝐊𝐒

YouTube : https://youtu.be/eiu81s0iyj8


𝐒𝐏𝐎𝐍𝐒𝐎𝐑𝐒

Brex—The modern finance platform, combining the world’s smartest corporate card with integrated expense management, banking, bill pay, & travel. https://brex.com/sourcery

Turing—Turing delivers top-tier talent, data, and tools to help AI labs improve model performance—and enables enterprises to turn those models into powerful, production-ready systems. https://turing.com/sourcery• VCX—VCX is the public ticker for private tech, allowing investors of all sizes to invest in venture capital. View The Portfolio at http://GetVCX.com

DeelDeel is the global people platform that helps startups hire, manage, pay, and equip anyone, anywhere. Trusted by more than 35,000 fast-growing companies, Deel is the people platform that just works, so teams can scale without the chaos. Visit: https://www.deel.com/sourcery

PublicInvesting platform Public just launched Generated Assets, which lets you turn any idea into an investable index with AI. With Generated Assets, you can build, backtest, refine, and invest in any thesis with AI. Gone are the days of one-size-fits-all ETFs. https://public.com/sourcery

Follow Sourcery for the latest updates!

https://www.sourcery.vc/


Disclosure


Paid Endorsement. Brokerage services by Open to the Public Investing Inc, member FINRA & SIPC. Advisory services by Public Advisors LLC, SEC-registered adviser. Crypto trading provided by Zero Hash LLC, licensed by the NYSDFS. Generated Assets is an interactive analysis tool by Public Advisors. Output is for informational purposes only and is not an investment recommendation or advice. See disclosures at public.com/disclosures/ga. Matched funds must remain in your account for at least 5 years. Match rate and other terms are subject to change at any time.